Performance Optimization of Air-drying Room with Solar-generated Hot Water

This study was aimed at design a dryer cabinet and drying experiment of un-peeled longan, striped banana and sliced beef in the amount 2.7 kg for unpeeled longan and 1.5 kg for strip bananas and sliced beef. A cabinet with dimensions 1.2m×0.8m×1.5m (length×width×height) was separated three trays and had a heat ex-changer on the side of the dryer. The experimental results showed that the optimization conditions for drying the unpeeled longan at a temperature of 75oC were used for 48-52h and the final initial moisture content 22%. For drying strip bananas should choose the water flow rate 8L/min, drying temperature 47oC for 13h and Final initial moisture con-tent 17.4%. For sliced beef, the moisture content should be between 14-20%.